Shock absorber



Feb. 9, 1932. B. BRONSON 1,844,2oo

SHOCK ABSORBER Filed Au 2; 1928 Patented Feb. 9. 1932 I ofru) s ATEs PATENT OFFICE BUDD BRONSON, OF LAKEWOOD, OHIO, ASSIGNOR TO THE OEIO RUBBER COMPANY, OF CLE'VELAND, OHIO, A CORPORATION OF- OEIO SHOCK Ansonnm Application filed August 2, 1928. Serial No. 296.834.

This invention relates to a shock absorber of the type adapted to be used with a motor vehicle franc and the axles thereof.

An objectof the invention is to provide a shoek absorber of simple design ha ving a relatively few number of parts and capable ot economic inanufacture.

Another object is to provide a shock absorbe' which will not require constant adjustment and lubricntion and wherein the operative parts may be readily assembled and disassembled for repair or replacement.

Additional objects'and advantages will appear hereinafter as the description ot' the invention proeeeds.

An embodinent of the invention is illustrated in the accompanying drawings wherein:

Fig. 1 is a side elevational View of the shock absorber when the same-is assembled upon the rame of a motor vehicle, one fan member only beingshown in this view;

Fig. 2 is a top plan View of the shoek absorber as shown in Fig. 1 two fan nenbers being shown, however, in this View;

Fig. 3 is a detail View of the shock absorber casing or container with the cover removed;

Fig. 4 is a transverse seetioal View taken approximately on line 4-4 ot' Fig. 1, but showing two tan members; and

l igs. 5 and 6 are detail views.

The deviee comprises, in general, the casing or container 10 which houses the shock absorbing and resistin elements, and the actuating arm ll which is connected to such elements and with the axle to cause operation ot the former. The easin or eontainer "in is a substantially cylindrical member provided at one end with outstanding attaching lugs 12 having openingxs 13 tor the passage of seeurin' member 14 which secure the easing to the trame ot the vehicle. while its outer cireunferenee adjacent the other or open end is provided with a cover plate 15. T his plate has openings 16 adapted to receive through bolts 17 which preferablv extend upwardly through a block of rubberresisting material 20 within the casing 10 to prevent relative rotation iherehetween` the upper ends oi" the bolts being in screwthreaded engagement with openings 18 in the closed end of the easing 10. The cover 15 is annular in shape and has a centrally arranged boss 19 provided with an opening for the purpose later to be described.

The shock absorbing and resisting elenents of the shoek absorber comprise a block 20, of rubber or other resilient material, adapted to fit within the casing or container and provided with longitudinal grooves within which oo engage the bolts 717 of the container, whereby the block and container are held in nonrotative relationship. `Enbedded or vulcanized within the block 20 are a plurality of shock transnitting members 21, which may vary in number and form, being, however, in the present embodinent two in number, and of substantially fan shape. These members areembedded or vulcanzed in the block adj acent the center thereof and are so arranged as to be located substantially centrally of the block. The members are t'ormed of steel stampings and are shaped in the nature' of a fan so that they have a central hub portion provided with a rectangular opening, the pe- 7:, riphery of which is tlanged to form an outstanding fiange hearing-22 while the arms 23 of the fan extend radially from the hub portion and at an angle thereto, such arms having their longitudinal edges flanged at 24. se Although the fans shown in the present embodiment have four blades or arms, it should be understood that the nunber of such arms is optional and may vary as desired. The members 21 are arranged in the block back- SI to-back so that the arms of one will extend angularly in one direction with respect to the longitudin al axis of the block while the arms of theother will extend angularly in the opposite longitudinal direction of the block, the arms of each member preferably being arranged so asvto be in alignment with the openinszs between the arms of the other member. `When the fans or member 21 are thus arranged back-to-baek, the hearing fianges 22 ot the rectangular openings in the hnb form a eontinuous hearing within which fits a rectangular portion 25 of a shaft 26. The rectangular portion 25 of 'the shat s arranged adjacent one end thereof and is of such length the hub portions of which the squared end 25 that it will extend somewhat above the top hearing fiange 22 and will terminate below the bottom of the casing or container when the end of ,the lower hearing flange 22 is in engagement with the shoulder 27 formed by the enlarged portionof the shaft. The intermediate enlarged portion of the shaft is c lindrical in shape and extends centrally trough the block and the boss of the casing or cover, while the outer end 28 of the shaft is reduced and threaded for the reception of the elements now to be described.

A ratchet Washer 29 provided with teeth on its outer surface and with a eentrally arranged internally threaded opening is screwed upon the reduced threaded end 28 of the shaft until it is in engagement with the shoulder formed by the end-of the intermediate enlarged portion of the shaft, which end is located a slight distance beyond the end of the boss 19 of the cover. The actuating arm 11 is provided at one end with an enlar'ement 30 having a central opening adapted to fit over the threaded portion 28 ofthe shatt and also havin one `face provided with ratchet teeth a( aptedto engage with the ratchet teeth of the adjacent face ot the ratchet Washer. This engagement is efi'ected by a nut 31 screwed upon the outer end of the threaded portion 28 of the shaft and, of course, held against movement by a suitable lock Washer or other means.

The opposite end of the arm 11 is provided with a squared portion 32 at the inner side of which is an upwardly extending lug 33. This squared portion 32 has a central opening' formed therein through which passes a bolt 34 for holdin in 'engagement wth such portion a curvel filler piece 35, one end of a flexible connecting element 36 and a clamp member 37. The flat end of the fillerpiece 35 fits upon the upper side ot the squared portion 32 and engages the lug 33, while the clamp 37 has a downwardly extending lug:

38 along one of it's edges ada pted to bear upon the top of the lug 33. WVhen the fiexible cor.- necting member 36 is interposed between the filler and the clamp and a nut 39 tightened or screwed down upon the bolt 34 it is apparent that such flexible member will be securely clamped to the outer end ot the actuating arm 11' and guided downwardly by the curved portion of the filler 'member toward the axle of the vehicle.

When the device has been assembled upon the vehicle, as shown in Fig. 1, movement of the axle thereof will be transmtted through the flexible element 36 to the actuating arm 11 which, in turn, will cause the shaft 26 to oscillate in the block 20 thercby rotatin g or oscillating the fan members` 21, which are embedded in the block and within of the att is non-rotatably engaged. It should be noted that these fan members and their arms are completely embedded in the block of resilient material and since the arms are provided with the fianges 24, and also because the arms of the fans extend in opposite directions, such members enga e the resilient block over a large surface an thereby have .their movement resisted by the block throughmodifications and adaptations within the scope ot the following claims.

Having thus described my invention, I claim:

1. A Shock absorber comprising a casing adapted to be Secured to a vehicle frame, a. block of resilient material non-rotatably ar- `ranged in said, casing, a plurality of fan members having relatively large block-en- .gaging blades embedded in said block with the bladcs of one fan'member aligning'with the spaces between the blades of another fan member, and a shaft extending through said block and operatively associated with said fan members whereby oscillation of said shaft and the operatively a'ssociated fan` y members will be resisted and absorbed by said block.

2. A Shock absorber comprising a casing adapted to be Secured to avehicle frame, a block of resilient material non-rotatably arranged in said casing, a plurality of separate fan-like members embedded in said block having flanged blades, a shaft extending into said block and operatively associated with said members, and means adapted to connect said shaft with a vehicle' axle whereby certain relative movements between the vehicle frame and axle will actuate said shaft and members and such actuation of said shaft and members will be yieldingly resisted and absorbed by the block.

3. A shock absorber comprising a casing adapted to be Secured to a vehicle frame, a block of resilient material non-rotatably arranged in said casing, a plurality of separate oppositely dispose'd fan-like members embedded in said block having flanged blades,'a shaft extending into said block and operatively associated with said members, and means adapted to connect said shaft with a vehicle axle, whereby certain relative movements between the vehicle frame and the axle will actuate said shaft and members, and

such actuation thereof will be yieldingly resisted and absorbed by the block;

4. A Shock absorber c'omprising a casing :dapted to be Secured to a vehicle frame, a

block of resilient material` non-rotatably ar-i ran 'ed in said casing, a fan-like member havng a central hub portion and angularly disposed fianged arms extending threfrom embedded in said block, and a shaft extending into said block and 'operativclyassociated With the hub portion of said member, Whereby oscillation oflsaid sh'aft and said member will be' resisted and absorbed by said block.

5. A Shock absorber comprising a-casing adapted to be Secured to a vehicle frame, a block of resilient material non-rotatably arranged in 'said casing, a plurality of fan-like members having a central hub portion and anguiarly disposed fianged arms extending there-from embedded in said block with the hub portions of adjacent members back-toback, and a shaft extending intosaid block and operatively associated With the hub portions of said members Whereby oscillation of said shaft and members; Will be yieldingly resisted and absorbed by said block.

6. A Shock absorber comprising a casing adapted to be Secured to a vehicie' frame, a block of resilient material non-rotatably arranged in saidcasing, a plurality of fan-like members embedded in said block having a hub portion provided W'ith a fianged central opening forming a hearing and angulaly disposed flanged arms extending therefrom,

said members being arranged With the hub portions of adjacent members back-to-hack Whereby the fianged openings therein form a continuous hearing opening and the arms extending therefrom are angularly 'disposcd with respect to each other, a shaft extending into said block and said flanged openings of 'the members 'to operatively associate said shatt and members, oneend of the shaft extending outwardly of the block and casing, and an actuating arm associated With the outwardiy extending end of the shaft, whereby When said arm is connected to a vehicle axle certain relative movements between the vehicle frame and axie will actuate such shaft and members and said block will absorb and resist such movements of actuation.

In testimony whereof, I hereunto aflix my signature.

BUDD BRONSON. 

